INTERMEDIATE SPECIES IN THE REACTION OF LOW-TEMPERATURE AMMONIA OXIDATION ON CR2O3 - A SPECTROKINETIC STUDY

Authors
MATYSHAK VA SILCHENKOVA ON STAROVEROVA LN KORCHAK VN
Citation
Va. Matyshak et al., INTERMEDIATE SPECIES IN THE REACTION OF LOW-TEMPERATURE AMMONIA OXIDATION ON CR2O3 - A SPECTROKINETIC STUDY, Kinetics and catalysis, 36(5), 1995, pp. 677-682
Citations number
19
Categorie Soggetti
Chemistry Physical
Journal title
Kinetics and catalysis → ACNP
ISSN journal
00231584
Volume
36
Issue
5
Year of publication
1995
Pages
677 - 682
Database
ISI
SICI code
0023-1584(1995)36:5<677:ISITRO>2.0.ZU;2-D
Abstract
The reactivity of surface complexes in low-temperature ammonia oxidati on on Cr2O3 is studied by the spectrokinetic method. Surface complexes NH3ads NH2ads, NOads, and NH4+ are shown to be intermediate species. Two reactions of ammonia oxidation were revealed: one of them (100 - 2 00 degrees C) is preceded by ammonia adsorption in the form of NH4+, t he other one (200 - 350 degrees C) involves adsorption in the form of coordinated ammonia.